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How much mechanical work is done in raising a 20.7 kg mass a distance of 2.69 metres? Note 1: This question is not direction specific. Therefore, if using acceleration due to gravity, please use positive 9.81 m/s/s. |
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Answer» 546.25 JExplanation:Given: MASS(m) = 20.7 KG distance(s) = 2.69 m ACCELERATION due to GRAVITY (g) = 9.81m/s²To find: Work done = ? formula:therefore, work = mg × sSubstituting the values, work = 20.7(9.81) × 2.69 = 203.067 × 2.69 work = 546.25 N-m work = 546.25 Joules |
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